Author Topic: Toyota 93 ecm- reverse engineering  (Read 372 times)

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Offline Cubah

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Toyota 93 ecm- reverse engineering
« on: March 10, 2020, 07:43:24 pm »
Hello,
Does anybody have experience with Such old cars ECm reverse enginering? I mean pcb to schematic convertion. I know that Toyota never published schematics, I am really interested to have. The first I would like to reverse Toyota Soarer 93 ECM.

Nice to hear your opinion or any help will be nice ...
Jake
 

Offline Rasz

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Re: Toyota 93 ecm- reverse engineering
« Reply #1 on: March 11, 2020, 08:37:44 am »
~$4K https://www.isensortech.com/
couple hundred if sourced directly from China, ~double that with middle men like https://www.chinapcbcopy.com/

but why would you want the diagram in the first place, its not like there is a vibrant market for factory ECU clones?
Who logs in to gdm? Not I, said the duck.
My fireplace is on fire, but in all the wrong places.
 

Offline Lindley

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Re: Toyota 93 ecm- reverse engineering
« Reply #2 on: March 11, 2020, 09:19:19 am »
More of a challenge would be to design and build your own ECM, building a simulated engine test bed with sensors to show how the ECM works.
 

Offline floobydust

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Re: Toyota 93 ecm- reverse engineering
« Reply #3 on: March 11, 2020, 09:51:08 am »
I would first ID the semiconductors to see if you can get datasheets on them. Unknown IC's can make it too difficult to figure out and reverse engineer, so a schematic is not much use then.
Nippon Denso liked to make custom ECU IC's, i.e. MAF sensor V/F, and use oddball Hitachi MCU.
 

Offline Circlotron

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Re: Toyota 93 ecm- reverse engineering
« Reply #4 on: March 11, 2020, 11:48:46 am »
Someone here might be able to point you in the right direction.
https://pcmhacking.net/forums/index.php
 


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